Identify correct conversion during acidic hydrolysis from the following : (A) starch gives galactose. (B)…

Identify correct conversion during acidic hydrolysis from the following :
(A) starch gives galactose.
(B) cane sugar gives equal amount of glucose and fructose.
(C) milk sugar gives glucose and galactose.
(D) amylopectin gives glucose and fructose.
(E) amylose gives only glucose.
Choose the correct answer from the options given below :
  1. (A), (B) and (C) only
  2. (B), (C) and (E) only
  3. (C), (D) and (E) only
  4. (B), (C) and (D) only

Solution

$(\mathrm{A})$ Starch $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_2 \mathrm{O}}$ Glucose
(B) Cane sugar $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_2 \mathrm{O}}$ glucose + fructose (Sucrose) $50 \% \quad 50 \%$
(C) Milk sugar $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_2 \mathrm{O}}$ glucose + galactose (Lactose)
(D) Amylopectin $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_2 \mathrm{O}}$ Glucose
(E) Amylose $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_2 \mathrm{O}}$ Glucose
So, correct options are B,C,and E only.

Asked in: JEE Main 2025 (28 Jan Shift 2)

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